Antiskid device



Aug. 14. 1928.

1,680,569 J. D. RICHIE v ANTISKID DEVICE y Filed Dec. 8,v 1926. 2 Sheets-Sheet 2 A Patented Aeg. '14 192sv PAT-ENT 'oF-FICE..

JOSEPH '1). mourn, or Caspian,V WYOMING.

lANTISIKIID DEVICE.

Application @led December 8,A 1926.` Serial No; 153,422.

This invention relates to attachment `for pneumatic and other soft 'treadtires ytoV the tire and*N which is free from the projections presentedby the links of cross chains,

hence will not injure the tire by becoming embedded' in the vsurface thereof which is one of the objectionable features urged against the ordinary tire chain. The invention furthermore provides an attachment of the character: stated which is light, capable of being easily handled, both when being placed in position, or removed, andwhich admits `of the cross members being readily replaced when worn or otherwise unfitted for service.

The device consists of side straps, preferably of rubber,l or a combination of rubber, lfabric and. metal strands, provided in their outer edges with notches and cross members of corresponding material having'loopsat their ends'to receive the side strapsv upon which they are slipped and retained inl place by the loops becoming seated in thesaid notches. y l

While the drawings illustrate a preferred embodiment of the invention, `it is to be understood that in adapting the means to meet specific needs and requirements, the design may be varied andsuch other changes in the 'minor det-ails of construction lmay be resorted to within the scope of the invention-as claimed, Without departing from the spirit thereof. l y For a full understanding of the invention and the merits therebf, reference is to be had to the following description and the drawings hereto attached, in whi`ch,'A

Figure 1 is a side view of `portion of a tire mounted upon a rim and having an antiskidl device applied thereto, embodying the vinvent-ion.

. Figure -2 is a diagrammatic view of a portion of, the anti-skid device. y

Figure 3 is a detail sectional view on the line 3 3 of Figure l, showing the' parts on a larger scale.

Figure 4 is a detail perspectiveview of a.

portion of a Side-strap land an end portion of a vcross member'threaded thereon, show--v ing more clearly the notch in the outer edge of the strap which provides a seat for theloops at the end of the cross member.

Figure 5 is an enlarged sectional view on the line-5 5 of Figure 1, and

Figure. 6 is'an enlarged sectional View on the line 6- -6 of Figure 2.

Corresponding and like parts are referred to in -the following .descriptionandf designated in' the several views, of the drawings by like reference characters. The'numeral. 1 designates a pneumatic or.4 otherA soft treadv tire and 2 the usualfrim upon which the tire is mounted. These parts are of well known construction-and are illustrated to demonstrate the applicationof the invention. The device comprises companion sidestraps 3 and cross straps 4 and 5, the straps 4 being single and the straps 5 of ',X-form. The several straps are'at. and may consist of rubber, or a combination of.rubber ,andV a reinforcement of textile and metal, the latter consisting of,l strands 6.

The side straps 3 are provided at one endl the ends of the members 4 and 5, as indi- 'l cated most clearly in Figure 2.

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Loops 9 are provided at the ends of the cross members 4 v.and 5 to-receive the side straps 3. The loops 9 are of a length a. triiie less than the width of the straps 3 so as to be retained in the notches 8. The terminal portions of the cross members are thickened andV transversely slotted whereby to provide. the loops 9. The cross members gaging the notches. orseats 8. Beca-use of the flexible nature of the side straps and' cross members, the latte-r may be readily replaced When'required, and a broken or worn cross member may be easily detached by Cutting throughthe loops .9, thereby obv are threaded or slipped upon the side straps andare retained in place by the loops 9 enviatlng delays incident to removing chains. .ojections 10 are molded upon the outer "side of. the cross members, or maybe provided in any manner, and these projections may be of any outline and as shown, are cruci-form which is preferred because of the many points provided to prevent slipping.

The devicey is flat and light, and lies close against the tire and is held from creeping thereon because of the nature of the material and the extent of surface in contact with the tire. Moreover, the device may be rolled `4into a compact package and may be easily i handled both when placing it in position upon a tire, or removing it therefrom.

The cross -or X-form of the members 5insures a better traction and prevents slipping. Thev invention obviates the usual metal side chains and metal cross chains and the Wear .incident to meta-l against metal. By having the side straps and the cross members of rubber the wear is reduced to the smallest l amount possible.

claim:

1. An anti-skid device forsoft tread tires,

Having thus described thev invention, I

the same comprising side straps `notched of the side straps and retained in place thereby, the several straps, being substan.

tially of rubber.

In testimony Whereofl affix my signature.

'JOSEPH D. RICHIE. lL. sl 

